खुले सिरे वाले वर्ग अंतरालों (open-ended class intervals) से निपटते समय केंद्रीय प्रवृत्ति का कौन सा माप सबसे उपयुक्त है?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: In Measures of Central Tendency, the mean is highly sensitive to extreme values, whereas the median remains uninfluenced by outliers. Reason R: The mean is the arithmetic average of a dataset, while the median simply represents the middle value in an ordered dataset. In the light of the above statements, choose the most appropriate answer from the options given below:

The number of patients treated in a dental office on Mondays was recorded for 11 weeks as follows: 5, 17, 28, 28, 28, 15, 13, 18, 10, 16, 20 What are the mean, median, and mode for this dataset?